JPH0566853A - Portable small-sized data processor - Google Patents

Abstract

PURPOSE:To obtain the portable small-sized data processor capable of interchangeably using a high accuracy display device and a color display device by attaching a display device to the data processor main body in freely attachably and detachably. CONSTITUTION:In a data processor main body 3, a display device fitting connector part 4 is provided, and a display device installed in the connector part 4 is fixed with a screw. In the data processor main body 3, two kinds of display devices of a liquid crystal display device 1 of 640X480 dots and a reflection type liquid crystal display device 2 of 640X200 dots are prepared. Physical interfaces of fitting parts of both the display devices 1, 2 consist of the same structure, and both the display devices can be installed in the fitting connector part 4 of the device main body 3. In such a way, when a display of high definition is necessary, the display device 1 is installed in the main body 3, and in the case of moving and using its processor, it is possible to change the display device 2 which is small in size and light in weight, and excellent in portability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laptop type or notebook type portable small data processing device, and more particularly to a portable small data processing device in which a display portion can be replaced with a display device having another display function. ..

[0002]

2. Description of the Related Art A conventional portable data processing device of a laptop type or a notebook type is driven by a battery,
As the display device, it is general to use a lightweight and power-saving display device that is convenient to carry. When high-definition display or color display is required, a desktop type data processing device is used. That is, the conventional portable small-sized data processing device is intended to be used simply and the present situation is that the high performance of the display device is not considered so much.

Incidentally, as one related to the conventional laptop type data processing device, for example, Japanese Patent Laid-Open No. 62-2262.
There are No. 12 and so on.

[0004]

A data processing device represented by a personal computer has been remarkably spread, and in recent years, a laptop type and a notebook type which are space-saving have become more popular than a desktop type. .. Even with small data processing devices, the performance of microchips used in them has been comparable to that used in desktop data processing devices due to advances in semiconductor microfabrication technology. Along with this, an increasing number of users operate high-performance application software, which is usually used in a desktop type, on a portable small data processing device. For this reason, even small-sized portable data processing devices are required to have high-definition display. However, since a display device capable of high-definition display or color display consumes a large amount of power, and is large and heavy, it has a problem of portability. On the other hand, however, small data processing devices are also required to be portable, and small data processing devices in the future are required to meet these contradictory requirements.

An object of the present invention is to provide a portable small data processing device capable of high definition display and color display.

[0006]

SUMMARY OF THE INVENTION The above-mentioned object is a portable device including a device main body including a control device for executing application software, an input device, and a power supply, and a display device detachably attached to the device main body. A small-sized data processing device, wherein a physical interface between the display device and a fitting portion of the device body is unified, and the size,
When another display device having different resolution, power consumption, and display quality is attached to the main body of the device, the information indicating the type of the display device is provided on the side of the display device and the main body side is initialized for the display device. This can be achieved by providing a means for converting on the apparatus main body side.

[0007]

With the structure in which the display device is detachably attached to the main body of the data processing device, such a display device is attached when high-definition display is required, and a small-sized and power-saving type is attached when portability is required. Replace with a display device. The architecture of the main body of the device supports multiple display modes from low resolution to high resolution of the display device, and the main body automatically identifies the display device attached to the main body, so that the user can Just replace it with another display device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a portable small data processing device according to an embodiment of the present invention. A battery 20 is mounted on the data processing apparatus main body 3, and the battery 20 is charged by the AC adapter 21. The data processing device main body 3 is provided with a display device fitting connector portion 4, and the display device mounted on the connector portion 4 is fixed by screws. This data processor has 2
Various types of display devices are available, one of which is 640x48
It is a liquid crystal display device 1 with 0 dots, and the other is 640 ×
This is a 200-dot reflective liquid crystal display device 2. The physical interfaces of the fitting portions of both display devices 1 and 2 have the same configuration, and any of the display devices can be attached to the fitting connector portion 4 of the device body 3.

In this embodiment, the architecture of the data processing apparatus main body 3 is based on IBM's PCAT compatible specifications. The display mode of this architecture is VGA (Video Graphic Ar) with a display resolution of 640 x 480 dots.
ray) mode, 640 × 350 dots EGA (Enhance
d Graphic Array) mode, 640 × 200 dot C
It has a representative mode of GA (Color graphic Adapter) mode, ordinary application software also supports each mode, and data etc. can be shared in any mode.

FIG. 2 shows a comparison of specifications between the display device 1 and the display device 2 shown in FIG. The display device 1 is VGA, EGA, C
GA display mode is possible, and black and white 16 gradation display 2
Layer STN liquid crystal backlight. Power consumption is 7W,
The weight is 900 g. On the other hand, the display device 2 is C
In GA mode, it is an 8-gradation display of reflective STN liquid crystal,
The power consumption is 0.5 W and the weight is 200 g. That is, the display device 1 is used when operating an application that requires high-resolution display, and the display device 2 is attached to the main body 2 when used while being carried somewhere.

FIG. 3 is a configuration diagram of a physical interface of a mounting portion of the display device, which is a portion having the same configuration in each display device. This interface portion has panel information 5 indicating the type of the display device. In this embodiment, this panel information has a 3-bit structure, and each bit "HIGH"
The type of panel is indicated by "H" and "LOW" information. Since it is a 3-bit configuration, up to eight types can be indicated. Removable fitting to the fitting connector portion 4 on the main body 3 side The portion to be engaged is fitted with the main body 3 via the interface connector 6, and the connector 6 is semi-fixed to avoid stress at the time of attachment / detachment.

FIG. 4 is a schematic view of the main part on the main body 3 side. The panel status register 14 of the display controller 7 receives the information of the panel information 5 on the main body 3 side, and the panel information is passed from the register 14 in response to a request from the CPU. When acquiring this information, the CPU initializes the display controller 9 according to the type of the display device. In this embodiment, the display device 1 and the display device 2
Since the display resolution and the display mode are different from, the read cycle of the display memory 8, the read address control (refresh address control) 11, the display data width conversion 1
2, the gradation conversion control unit 10 and the display reference clock 13 are switched according to the display device type information. These controls may be configured such that each device directly reads the information in the register 14 instead of the command from the CPU. When the power supply voltage varies depending on the type of display device, it is necessary to switch the power supply to the display device. With the above functions, in this embodiment, two types of display devices can be arbitrarily exchanged.

As shown in FIG. 2, since the high resolution display device 1 is heavy and consumes a large amount of power, an AC adapter is connected to the main body 3 to use this data processing device on a desk. Become. Since the display color is 16 gradations in black and white, it is possible to express a complicated and diversified display, and the display satisfies the high level requirements of the user. On the other hand, the low-resolution display device 2 is light and consumes less power, and thus has excellent portability and can be used for a long time even when used with a battery.
Easy to carry.

[0014]

According to the present invention, since the display portion of the portable small data processing device can be replaced with a desired display device, the range of usage of this data processing device is widened, and it can be used by various users at low cost. It is possible to answer the request.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a portable small data processing device according to an exemplary embodiment of the present invention.

FIG. 2 is a specification comparison diagram of display devices.

FIG. 3 is a configuration diagram of a fitting portion of the display device.

FIG. 4 is a configuration diagram of a main part on the apparatus main body side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... High resolution display device, 2 ... Low resolution display device, 3 ... Data processing device main body, 4 ... Display device fitting connector part, 5
… Panel information.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location G06F 15/02 315 Z 9194-5L 7927-5B G06F 1/00 350 A

Claims (1)

[Claims] 1. A portable small data processing device comprising a device main body including a control device for executing application software, an input device, and a power source, and a display device detachably attached to the device main body. A physical interface between the display device and the fitting portion of the device body is unified, and another display device different in at least one of size, resolution, power consumption, and display quality is attached to the device body. A portable small-sized data processing device, characterized in that means for reading the information indicating the type of the display device is provided on the display device side to initialize the main body side for the display device.